Preparation and characterization of activated carbon from grape stalk by zinc chloride activation
Fuel Processing Technology, ISSN: 0378-3820, Vol: 125, Page: 200-206
2014
- 284Citations
- 438Captures
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Article Description
In this study, low cost activated carbon was prepared from the grape stalk by chemical activation with ZnCl 2 in CO 2 atmosphere and its characteristics were determined. Experiments were carried out at different carbonization temperature and time, impregnation time and impregnation ratio, which had significant effect on the pore structure and surface area of carbon. The prepared activated carbon was characterized by proximate-ultimate analysis, BET surface area, iodine number, surface functional group analysis by Boehm's titration and FT-IR analysis, pHzpc, SEM-EDX and particle size distribution. Results showed that the carbonization temperature and impregnation ratio have significant effect on the surface area and pore structure of the prepared activated carbon. The optimum conditions for preparing the activated carbon having the highest surface area were found to be a carbonization temperature of 700 °C, carbonization time of 120 min, impregnation time of 36 h and ZnCl 2 /grape stalk ratio of 2. The results showed that the BET surface area, total pore volume, iodine number, pHzpc and the yield of activated carbon prepared under the optimum conditions were 1411 m 2 /g, 0.723 cm 3 /g, 1760 mg/g, 2.84 and 26.48%, respectively, and the activated carbon has acidic surface functional groups and highly porous surface with cracks, channels and large holes.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0378382014001477; http://dx.doi.org/10.1016/j.fuproc.2014.04.002; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84899674009&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0378382014001477; https://api.elsevier.com/content/article/PII:S0378382014001477?httpAccept=text/plain; https://api.elsevier.com/content/article/PII:S0378382014001477?httpAccept=text/xml; https://dx.doi.org/10.1016/j.fuproc.2014.04.002
Elsevier BV
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